Home / 27,650.84-38,159.18-15,716.20

Finding the Fourth Proportional to 27,650.84, 38,159.18 and 15,716.20

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Solution

The fourth proportional to 27,650.84, 38,159.18 and 15,716.20 is: 21,688.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,650.84 : 38,159.18 = 15,716.20 : x
  2. Step 2: Convert to fraction form
    27,650.84/38,159.18 = 15,716.20/x
  3. Step 3: Cross multiply
    27,650.84x = 38,159.18 × 15,716.20
  4. Step 4: Simplify right side
    27,650.84x = 599,717,304.72
  5. Step 5: Solve for x
    x = 599,717,304.72/27,650.84
  6. Step 6: Final answer
    x = 21,688.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.